Change permalink structure

Hi there,

I just installed and configured the Multipage plugin. The default URL strucute is pretty bad.

For example I use the blogpost https://www.domain.de/blogpost with 3 parts. The second part is linking to https://www.domain.de/blogpost/2 and the third part to https://www.domain.de/blogpost/3. I don’t want to use a new level (/2 and /3).

How can I change the URL structure to https://www.domain.de/blogpost-2 or https://www.domain.de/blogpost-part-2 and https://www.domain.de/blogpost-3 or https://www.domain.de/blogpost-art-part-3?

Best regards